Immunoserology and RHD Genotype Analysis of DVI Type 3 Genotype Pregnant Women with Anti-D / 中国实验血液学杂志

ABSTRACT

<p><b>OBJECTIVE</b>To performe the immuneserological and RHD Genotype analyses for DVI type 3 genotype pregnemt women with anti-D.</p><p><b>METHODS</b>RhD blood type of this pregnant women was identified by common serological methods, then the blood group specific antibodies was screened and identified; the polymerase chain reaction-sequence specific primer(PCR-SSP) was used to identify the pregnant women's RHD genotype; RhD blood group for the pregnant women, her spouse and daughter was genogrouped and genetically analyzed by multiplex ligation-dependent probe amplification(MLPA). The heredity of this family was analyzed finally.</p><p><b>RESULTS</b>The titer of IgG anti-D in the pregnant woman serum was 18; the PCR-SSP showed that the 3rd to 6th exons of RHD gene were missing in the pregnant woman. the genotype of pregnant woman was identified as DVI type 3; the MLPA analysis showed that this pregnant women owned only one RHD allele with 3rd to 6th exons missed, and her genotype was identified as CDe/cde; her spouse was identified as CDe/CDe homozygous genotype, and her daughter as CDe/CDe.</p><p><b>CONCLUSION</b>Accurate identification of RhD blood type is of great significance for a safe and effective clinical blood transfusion strategy, and for taking appropriate measures to prevent hemolytic disease of newborn (HDN) at women childbearing age.</p>